Extreme11 is still late July. It wouldn't make sense to get it if I get two X2 7970's for quad-fire seeing as I already have two 16x speed slots with the Sniper 3. I was going to go with the Extreme11 if an "Eyefinity 6" type 7970 came out so I could get four of those. But that hasn't been the case. I will still hold onto my 3960X until the dust settles just to make sure.
If for some reason my 5x 2B catleap is a bust with the X2's, I still may go with three monitors and 4x 680 Classified's, so there is another case I might get the Extreme11. Plus that board is just full of win so I might get it anyway.
I think two X2's going through one PLX (Sniper 3) might run a few percentage points faster than two X2's running through two PLX's (Extreme11), well unless I run the X2's in 16x slots #1 and #2 (with water cooling and cutting the bracket of course as X2's are 3-slot) instead of the traditional #1 and #3 that have their own PLX tied to them.
In the end state it most likely doesn't matter though as whether I keep Sniper 3 or go Extreme11 both X2's will have 16x speed slots.Edited by CallsignVega - 6/11/12 at 2:48am